townsen-d



H. s. TOWNSEND. Seed and Grain Sieve.

No. 66,188. i Patented June 25, 1867.

N-PETERS. FHOTO-LITHOGRAFHER, WASHXNGTON D O.

' Quits-I1 ta trs gaunt ffirs.

H. S. TOWNSEND, GREENVALE, ILLINOIS.

Letters Patent Natalee, dated June 25, 1867. i

SEED AND GRAIN-SEVE- TO ALL WHOM IT MAY'CQNCERN:

Be it known that I, H. S.'TOWNSEND, of Greenvale, Jo Daviess county, Illinois, have invented a new and improved Seed or Grain-Sieve; and I do hereby declare that the following is a full, clear, and exact description thereofl which will enable others skilled-in the art to make and use the same, reference being bad to the accompanying drawings, forming part of this specification, in which- Figure 1 is a longitudinal vertical section ofmy invention.

Figure 2 is a vertical cross-section ofthe same taken on the line xx, fig. 1.

Similar letters of reference indicate corresponding parts.

This invention consists in the application of an additional shoe outside of and above the ,ordinary grainshoe of a fanning-mill or threshing machine, whereby the sieve is prolonged, and the grain passed over a larger perforated surface. Thereby the complete separation of the fine from the coarse grain or seed will be effected.

The invention also consists in the use of stronv wire su orts which are arran ed under the wire nettin to c 7 I: g keep the same flat and prevent it from sagging.

The invention can be readily applied to machines that are already in operation, and will greatly facilitate the thorough separation of the seed or grain. I

v A represents an ordinary grain-shpe; B is the fanning-cylinder, and C the hopper. All these parts are of usual construction, being partspf an ordinary threshing machine, and are shown by red lines in fig. 1. D is a wire screen, which issecured between the cheeks of the shoeA in any suitable manner. This screen extends beyond the end ofthe shoe A, as is clearly shown in fig/1, and its outer end rests upon or is secured in an additional shoe, E. Qn the "inner edge of the oat board a of the shoe E is formed a projecting lip, 6, which' rests upon the extreme edge'of the pat-board of the shoe A, and thus these boards are connected, as shown. It will be seen that that portion of the screen which projects beyond the shoe A is about as long as the other part of it, or, in other words, the length of the screen is about doubled by this invention. Below the wire netting is stretched across the frai'ne of the screen D .a number of strong wires, cc, which support the wire netting and hold the same fiat. These wire braces or supports are no equivalent for wooden laths, as they are not 0nly elastic, but are small and round, and do'consequentlynot interfere with the flow of seed or grain through the meshes, nor do they only'divide the screen in so many portions, (high onthe edges and low in the centre,) as wooden supports should do. i I H F Having thus described my invention, what-I claim as new, and desire to secure by Letters Patent, is

'1. Extending the screen D of aggrain or seed separator orthreshing-machine beyond the ordinary grainshoc, and supporting its outer end by an additional shoe, E, substantially as and for the purpose herein shown and described.

,2," The application of the wire braces cc, below the netting of a wire sc'reer. ID: for the purposes set forth, and substantially as herein shown and described.

. H. s. TOWNSEND.

v Witnesses: I

WM. F. McNAMAnA, I ALEX. F. ROBERTS. 

